Subscribe to our YouTube channel ×

    GeForce 845M vs GeForce GT 640M LE

    When comparing GeForce 845M and GeForce GT 640M LE, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce 845M and GeForce GT 640M LE is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce 845M Check Price
    GeForce GT 640M LE Check Price

    GeForce 845M and GeForce GT 640M LE are Laptop Graphics Cards

    Note: GeForce 845M and GeForce GT 640M LE are only used in laptop graphics. They have lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with GeForce 845M or GeForce GT 640M LE here:

    GeForce 845M Laptops
    GeForce GT 640M LE Laptops

    Main Specs

      GeForce 845M GeForce GT 640M LE
    Power consumption (TDP) 45 Watt 20 Watt
    Interface PCIe 3.0 x8 PCIe 2.0 x16
    Memory type DDR3, GDDR5 DDR3\DDR5
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs No outputs
      Check Price Check Price
    • GeForce 845M has 125% more power consumption, than GeForce GT 640M LE.
    • GeForce 845M is connected by PCIe 3.0 x8, and GeForce GT 640M LE uses PCIe 2.0 x16 interface.
    • GeForce 845M and GeForce GT 640M LE have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce 845M is build with Maxwell architecture, and GeForce GT 640M LE - with Fermi / Kepler.
    • GeForce 845M and GeForce GT 640M LE are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce 845M is 200 MHz higher, than GeForce GT 640M LE.

    Game benchmarks

    high / 1080p 3−4 0−1
    ultra / 1080p 1−2 −
    QHD / 1440p 0−1 0−1
    low / 720p 14−16 1−2
    medium / 1080p 6−7 0−1
    The average gaming FPS of GeForce 845M in Assassin's Creed Odyssey is 1400% more, than GeForce GT 640M LE.

    Full Specs

      GeForce 845M GeForce GT 640M LE
    Architecture Maxwell Fermi / Kepler
    Code name GM108 N13P-LP
    Type Laptop Laptop
    Release date 12 March 2014 22 March 2012
    Pipelines 384 384
    Core clock speed 1071 MHz
    Boost Clock 1150 MHz
    Transistor count 1,870 million 585 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 37.63
    Floating-point performance 883.7 gflops 384.0 gflops
    Memory bus width 64/128 Bit 128bit
    Memory clock speed 2000 - 5000 MHz 1800 - 4000 MHz
    Memory bandwidth 40.1 GB/s
    Shared memory - -
    DirectX 12 (11_0) 12 API
    Shader Model 5.1 5.1
    OpenGL 4.6 4.5
    OpenCL 1.2 1.1
    Vulkan 1.1.126 N/A
    CUDA + +
    CUDA cores Up to 384
    Bus support PCI Express 2.0, PCI Express 3.0
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 76 Mh/s 14 Mh/s
    Laptop size medium sized medium sized
    Optimus + +
      Check Price Check Price

    Similar compares